MULTI-FUNCTIONAL ELECTRODE DEVICES FOR FAST-CHARGING OF ENERGY-STORAGE DEVICES AND METHODS THEREIN
    22.
    发明申请
    MULTI-FUNCTIONAL ELECTRODE DEVICES FOR FAST-CHARGING OF ENERGY-STORAGE DEVICES AND METHODS THEREIN 有权
    用于快速充电能量储存装置的多功能电极装置及其方法

    公开(公告)号:US20150333551A1

    公开(公告)日:2015-11-19

    申请号:US14707004

    申请日:2015-05-08

    Applicant: StoreDot Ltd.

    Abstract: The present invention discloses multi-functional electrode (MFE) devices for fast-charging of energy-storage devices. MFE devices include: a multi-functional electrode (MFE) device for fast-charging of energy-storage devices, the device including: a first MFE structure for forming a suitable electrochemical half-couple, the first MFE structure having a first fast-charging component (FCC) and a first MFE assembly; a counter-electrode structure for forming a complementary electrochemical half-couple to the first MFE structure; and an internal voltage controller (IVC) for applying a bias potential to the first MFE structure and/or the counter-electrode structure, whereby the bias potential is set in accordance with the chemical nature of the first MFE structure and the counter-electrode structure. Preferably, the IVC is configured to regulate an intra-electrode potential gradient between the first FCC and the first MFE assembly, thereby controlling a charge rate from the first FCC to the first MFE assembly.

    Abstract translation: 本发明公开了一种用于快速充电储能装置的多功能电极(MFE)装置。 MFE装置包括:用于快速充电能量存储装置的多功能电极(MFE)装置,该装置包括:用于形成合适电化学半耦合的第一MFE结构,第一MFE结构具有第一快速充电 组件(FCC)和第一MFE组件; 用于形成与第一MFE结构互补的电化学半耦合的对电极结构; 以及用于对第一MFE结构和/或对电极结构施加偏置电位的内部电压控制器(IVC),由此根据第一MFE结构和对电极结构的化学特性来设置偏置电位 。 优选地,IVC被配置为调节第一FCC和第一MFE组件之间的电极内电位梯度,由此控制从第一FCC到第一MFE组件的充电速率。

    Introducing a mobile layer of ionic liquid into electrolytes of lithium ion batteries

    公开(公告)号:US10424814B2

    公开(公告)日:2019-09-24

    申请号:US16013969

    申请日:2018-06-21

    Applicant: StoreDot Ltd.

    Abstract: Electrolytes, anodes, lithium ion cells and methods are provided for preventing lithium metallization in lithium ion batteries to enhance their safety. Electrolytes comprise up to 20% ionic liquid additives which form a mobile solid electrolyte interface during charging of the cell and prevent lithium metallization and electrolyte decomposition on the anode while maintaining the lithium ion mobility at a level which enables fast charging of the batteries. Anodes are typically metalloid-based, for example include silicon, germanium, tin and/or aluminum. A surface layer on the anode bonds, at least some of the ionic liquid additive to form an immobilized layer that provides further protection at the interface between the anode and the electrolyte, prevents metallization of lithium on the former and decomposition of the latter.

    Lithium borates and phosphates coatings

    公开(公告)号:US10355271B2

    公开(公告)日:2019-07-16

    申请号:US15480922

    申请日:2017-04-06

    Applicant: STOREDOT LTD.

    Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

    Electrolytes with ionic liquid additives for lithium ion batteries

    公开(公告)号:US10096859B2

    公开(公告)日:2018-10-09

    申请号:US15447889

    申请日:2017-03-02

    Applicant: StoreDot Ltd.

    Abstract: Electrolytes, anodes, lithium ion cells and methods are provided for preventing lithium metallization in lithium ion batteries to enhance their safety. Electrolytes comprise up to 20% ionic liquid additives which form a mobile solid electrolyte interface during charging of the cell and prevent lithium metallization and electrolyte decomposition on the anode while maintaining the lithium ion mobility at a level which enables fast charging of the batteries. Anodes are typically metalloid-based, for example include silicon, germanium, tin and/or aluminum. A surface layer on the anode bonds, at least some of the ionic liquid additive to form an immobilized layer that provides further protection at the interface between the anode and the electrolyte, prevents metallization of lithium on the former and decomposition of the latter.

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